Finding the Fourth Proportional to 1,025.38, 1,415.25 and 605.58

Step by Step Solution

1. Step 1: Write the proportion equation
   1,025.38 : 1,415.25 = 605.58 : x
2. Step 2: Convert to fraction form
   1,025.38/1,415.25 = 605.58/x
3. Step 3: Cross multiply
   1,025.38x = 1,415.25 × 605.58
4. Step 4: Simplify right side
   1,025.38x = 857,047.10
5. Step 5: Solve for x
   x = 857,047.10/1,025.38
6. Step 6: Final answer
   x = 835.83